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Related papers: Weakly-Supervised Anomaly Detection in Surveillanc…

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Video anomaly detection under weak supervision presents significant challenges, particularly due to the lack of frame-level annotations during training. While prior research has utilized graph convolution networks and self-attention…

Computer Vision and Pattern Recognition · Computer Science 2024-01-24 Yujiang Pu , Xiaoyu Wu , Lulu Yang , Shengjin Wang

Video anomaly detection (VAD) is crucial for video analysis and surveillance in computer vision. However, existing VAD models rely on learned normal patterns, which makes them difficult to apply to diverse environments. Consequently, users…

Computer Vision and Pattern Recognition · Computer Science 2025-12-08 Sunghyun Ahn , Youngwan Jo , Kijung Lee , Sein Kwon , Inpyo Hong , Sanghyun Park

Weakly supervised video anomaly detection (WS-VAD) is tasked with pinpointing temporal intervals containing anomalous events within untrimmed videos, utilizing only video-level annotations. However, a significant challenge arises due to the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Yu Wang , Shiwei Chen

Video anomaly detection (VAD) aims to identify and ground anomalous behaviors or events in videos, serving as a core technology in the fields of intelligent surveillance and public safety. With the advancement of deep learning, the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Shibo Gao , Peipei Yang , Haiyang Guo , Yangyang Liu , Yi Chen , Shuai Li , Han Zhu , Jian Xu , Xu-Yao Zhang , Linlin Huang

The increasing number of surveillance cameras and security concerns have made automatic violent activity detection from surveillance footage an active area for research. Modern deep learning methods have achieved good accuracy in violence…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Dipon Kumar Ghosh , Amitabha Chakrabarty

Unsupervised video class incremental learning (uVCIL) represents an important learning paradigm for learning video information without forgetting, and without considering any data labels. Prior approaches have focused on supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Nattapong Kurpukdee , Adrian G. Bors

Anomaly detection is a key goal of autonomous surveillance systems that should be able to alert unusual observations. In this paper, we propose a holistic anomaly detection system using deep neural networks for surveillance of critical…

Computer Vision and Pattern Recognition · Computer Science 2020-11-06 Ilker Bozcan , Erdal Kayacan

With more well-performing anomaly detection methods proposed, many of the single-view tasks have been solved to a relatively good degree. However, real-world production scenarios often involve complex industrial products, whose properties…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Mathis Kruse , Bodo Rosenhahn

Weakly supervised instance segmentation reduces the cost of annotations required to train models. However, existing approaches which rely only on image-level class labels predominantly suffer from errors due to (a) partial segmentation of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Qing Liu , Vignesh Ramanathan , Dhruv Mahajan , Alan Yuille , Zhenheng Yang

Anomaly detection through video analysis is of great importance to detect any anomalous vehicle/human behavior at a traffic intersection. While most existing works use neural networks and conventional machine learning methods based on…

Computer Vision and Pattern Recognition · Computer Science 2018-08-31 Mohammmad Farhadi Bajestani , Seyed Soroush Heidari Rahmat Abadi , Seyed Mostafa Derakhshandeh Fard , Roozbeh Khodadadeh

Of late, weakly supervised object detection is with great importance in object recognition. Based on deep learning, weakly supervised detectors have achieved many promising results. However, compared with fully supervised detection, it is…

Computer Vision and Pattern Recognition · Computer Science 2017-04-04 Peng Tang , Xinggang Wang , Xiang Bai , Wenyu Liu

Social video anomaly is an observation in video streams that does not conform to a common pattern of dataset's behaviour. Social video anomaly detection plays a critical role in applications from e-commerce to e-learning. Traditionally,…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Chengkun He , Xiangmin Zhou , Chen Wang , Iqbal Gondal , Jie Shao , Xun Yi

Explainable anomaly detection methods often have the capability to identify and spatially localise anomalies within an image but lack the capability to differentiate the type of anomaly. Furthermore, they often require the costly training…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Alex George , Lyudmila Mihaylova , Sean Anderson

In this paper, we address the problem of unsupervised video anomaly detection (UVAD). The task aims to detect abnormal events in test video using unlabeled videos as training data. The presence of anomalies in the training data poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Jihun Yi , Sungroh Yoon

Multiple-instance learning (MIL) provides an effective way to tackle the video anomaly detection problem by modeling it as a weakly supervised problem as the labels are usually only available at the video level while missing for frames due…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Hitesh Sapkota , Qi Yu

Learning to detect real-world anomalous events using video-level annotations is a difficult task mainly because of the noise present in labels. An anomalous labelled video may actually contain anomaly only in a short duration while the rest…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Muhammad Zaigham Zaheer , Jin-ha Lee , Marcella Astrid , Arif Mahmood , Seung-Ik Lee

The goal of weakly supervised video anomaly detection is to learn a detection model using only video-level labeled data. However, prior studies typically divide videos into fixed-length segments without considering the complexity or…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Chen Zhang , Guorong Li , Yuankai Qi , Hanhua Ye , Laiyun Qing , Ming-Hsuan Yang , Qingming Huang

Video anomaly detection is a challenging task not only because it involves solving many sub-tasks such as motion representation, object localization and action recognition, but also because it is commonly considered as an unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Yuqi Ouyang , Victor Sanchez

The increasing popularity of compact and inexpensive cameras, e.g.~dash cameras, body cameras, and cameras equipped on robots, has sparked a growing interest in detecting anomalies within dynamic scenes recorded by moving cameras. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Runyu Jiao , Yi Wan , Fabio Poiesi , Yiming Wang

Video anomaly detection is an essential but challenging task. The prevalent methods mainly investigate the reconstruction difference between normal and abnormal patterns but ignore the semantics consistency between appearance and motion…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Xiangyu Huang , Caidan Zhao , Zhiqiang Wu
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